Since you're not into a really big fuss about being the best you should go pure str from now on.
At level 60, you will have a 90% phy and 38% mag balance which i still consider a pretty good build.
And your light problem..
Yeah, if you'd like a little boost of damage you should chance to fire.
But keep the light because at higher level you'll need ghost/phantom walk.
So all in all: go all str from now on and level up your fire.
&& you should be set.
